Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei

MAO Guang-Jun

Chinese Physics C> 2004, Vol. 28> Issue(12) : 1356-1360

Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei

MAO Guang-Jun ^,

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,ChinaInstitute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080,ChinaCCAST World Lab.,Beijing 100080,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The quantum vacuum in a many–body system of finite nuclei has been investigated within the relativistic Hartree approach which describes the bound states of nucleons and anti–nucleons consistently. The contributions of the dirac sea to the source terms of the meson–field equations are taken into account up to the one–nucleon loop and one-meson loop. the tensor couplings for the ω–and ρ–meson are included in the model. After adjusting the parameters of the model to the properties of spherical nuclei, a large effective nucleon mass m*/m_n≈0.78 is obtained. the overall nucleon spectra of shell–model states are in agreement with the data. The computed anti–nucleon spectra in the vacuum differ about 20—30MeV with and without the tensor–coupling effects.

References

[1]

.Auerbach N et al . Phys. Lett . , 1986, B182: 2212. Reinhard P G et al. Z. Phys. , 1986, A323: 133. Bohr A, Mottelson B R. Nuclear Structure ( Benjamin W A. New York,1969)4. Serot B D, Walecka J D, Adv. Nucl. Phys. , 1986, 16: 15. Gambhir Y K, Ring P, Thimet A. Ann. Phys. , 1990, 198: 1326. REN Z Z et al. Phys. Lett. , 1996, B380: 2417. MENG J et al . Phys. Rev. , 1998, C58: R6288. Sugahara Y, Toki H. Nucl. Phys. , 1994,A579: 5579. Horowitz C J, Serot B D. Phys. Lett . , 1984, B140: 18110. Perry R J. Phys. Lett . , 1986, B182: 269; Nucl. Phys. , 1987, A467:71711. Wasson D A. Phys. Lett. , 1988, B210: 4112. Fox W R. Nucl . Phys. , 1989, A495: 46313. Furnstahl R J, Price C E. Phys. Rev. , 1989, C40: 1398; Phys. Rev. ,1990, C41: 179214. Bearden I G et al. Phys. Rev. Lett . , 2000, 85: 268115. Armstrong T A( E864 Collab. ) . Phys. Rev. Lett . , 2000, 85: 268516. Mao G, Stcker H, Greiner W. Int . J. Mod. Phys. , 1999, E8: 389;AIP Conf. Proc. , 2001, 597: 11217. MAO G J. Phys. Rev. , 2003, C67: 044318; HEPNP, 2003, 27: 692(in Chinese)(茅广军.高能物理与核物理,2003,27:692) 18. Boguta J, Bodmer A R. Nucl . Phys. , 1997, A292: 41319. Bjorken J D, Drell S D. Relativistic Quantum Mechanics ( McGraw Hill, New York, 1964)20. Aitchison I J R, Fraser CM. Phys. Lett. , 1984, B146: 63; Cheyette O. Phys . Rev. Lett . , 1985, 55: 2394; Fraser C M. Z. Phys. , 1985,C28: 101; Chan L H. Phys. Rev. Lett. , 1985, 54: 122221. Mattauch J H E, Thiele W, Wapstra A H. Nucl . Phys. , 1965, 67: 1;Vautherin D, Brink D M. Phys. Rev. , 1972, C5: 626; de Vries H, de Jager C W, de Vries C. At. Data Nucl. Data Tables, 1987, 36: 495

[1]	ZHOU Li-Juan , Ma Wei-xing . Nuclear Short range correlations in finite nuclei. Chinese Physics C, 2008, 32(1): 44-48. doi: 10.1088/1674-1137/32/1/010
[2]	YANG Fang , SHEN Hong . Quark-meson coupling model with a density-dependent bag constant for nuclear matter and finite nuclei. Chinese Physics C, 2006, 30(7): 620-624.
[3]	HUANG Xi , ZHANG Feng-Shou , FENG Zhao-Qing , JIN Gen-Ming . Critical Behavior of Multifragmentation in Finite Nuclei and Extraction of Critical Exponents. Chinese Physics C, 2006, 30(2): 123-127.
[4]	FENG Zhao-Qing , ZHANG Feng-Shou , HUANG Xi , JIN Gen-Ming , LI Wen-Fei . Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei. Chinese Physics C, 2005, 29(6): 577-582.
[5]	SHEN Hong . Quark Mean Field Model for Finite Nuclei and Hypernuclei. Chinese Physics C, 2004, 28(12): 1313-1316.
[6]	LIU Ling , CAO Li-Gang , MA Zhong-Yu . The Effective DBHF Method for Finite Nuclei. Chinese Physics C, 2001, 25(7): 658-667.
[7]	Chen Xiangjun , Liu Lianshou . Infrared Divergences of Three-Loop Vacuum Graghs of Gluon Field at Finite Temperature. Chinese Physics C, 1998, 22(2): 133-140.
[8]	Ma Fengcai , Liu Yanxia , Xiao Hongfei . Vacuum Polarization in Finite Temperature and the Electromagnetic Properties of Background Medium. Chinese Physics C, 1998, 22(9): 823-829.
[9]	Chen Xiangjun , Liu Lianshou . Regularization of Infrared Divergences in the Vacuum Graphs of Massless Field at Finite Temperature. Chinese Physics C, 1997, 21(5): 425-432.
[10]	Chen Baoqiu , Shi Hualin , Ma Zhongyu . N-N Correlations and Relativistic Density Dependent Mean Field Approach in Finite Nuclei. Chinese Physics C, 1995, 19(9): 852-857.
[11]	ZHENG Guo-Tong , SU Ru-Keng . One η-Meson Exchange Potential of Nucleon-Nucleon at Finite Temperature. Chinese Physics C, 1992, 16(2): 131-136.
[12]	ZHANG Qi-Ren , LI Xun-Gui . Finite Abnormal Nuclei. Chinese Physics C, 1991, 15(11): 1010-1014.
[13]	LIU Liang-Gang . ONE LOOP RENORMALIZATION OF NUCLEON ENERGY DENSITY IN NUCLEAR MATTER BY CHIRAL σ MODEL. Chinese Physics C, 1990, 14(9): 822-828.
[14]	SA Ben-Hao , ZHENG Yu-Ming , ZHANG Xiao-Ze , LU Zhao-Qi , XU Shu-Yan , , . ON THE BEHAVIOR OF PHASE TRANSITION SHOWN IN DISASSYMBLY PROCESSES OF VERY HOT AND DILUTE FINITE NUCLEAR SYSTEMS. Chinese Physics C, 1989, 13(2): 142-147.
[15]	LI Guang-Lie , . CONTRIBUTION OF THE ENERGY-MOMENTUM DISTRIBUTION NUCLEONS IN NUCLEI TO THE EMC EFFECT. Chinese Physics C, 1989, 13(1): 42-49.
[16]	YUAN Hai-Ji , YE Wei-Lei , GAO Qin , SHEN Qing-Biao . MICROSCOPIC OPTICAL POTENTIAL CALCULATIONS OF FINITE NUCLEI WITH EXTENDED SKYRME FORCES. Chinese Physics C, 1986, 10(3): 335-342.
[17]	SU Ru-Keng , BI Pin-Zhen . THE ELEMENTARY EXCITATION SPECTRA OF MOHAPATRA-SENJANOVIC MODEL AT FINITE TEMPERATURE. Chinese Physics C, 1984, 8(2): 177-184.
[18]	SHI Xiang-Jun . THE APPLICATION OF OBEP IN THE HARTREE-FOCK CALCULATION FOR SOME FINITE NUCLEI. Chinese Physics C, 1983, 7(2): 223-228.
[19]	Wang Ying-cai , Li Guang-lie , Zhang Zong-ye . THE π CONDENSATION EFFECTS IN FINITE NUCLEI. Chinese Physics C, 1980, 4(1): 63-72.
[20]	YU YOU-WEN . THE INTERACTION OF ANTINUCLEON WITH NUCLEUS. Chinese Physics C, 1979, 3(6): 676-680.

Access

Get Citation

MAO Guang-Jun. Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei[J]. Chinese Physics C, 2004, 28(12): 1356-1360.

MAO Guang-Jun. Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei[J]. Chinese Physics C, 2004, 28(12): 1356-1360. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-11-29
Revised: 1900-01-01

Article Metric

Article Views(2771)
PDF Downloads(733)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei

Corresponding author: MAO Guang-Jun,

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,ChinaInstitute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080,ChinaCCAST World Lab.,Beijing 100080,China

Received Date: 2003-11-29

Accepted Date: 1900-01-01

Available Online: 2004-12-05

Abstract: The quantum vacuum in a many–body system of finite nuclei has been investigated within the relativistic Hartree approach which describes the bound states of nucleons and anti–nucleons consistently. The contributions of the dirac sea to the source terms of the meson–field equations are taken into account up to the one–nucleon loop and one-meson loop. the tensor couplings for the ω–and ρ–meson are included in the model. After adjusting the parameters of the model to the properties of spherical nuclei, a large effective nucleon mass m*/m_n≈0.78 is obtained. the overall nucleon spectra of shell–model states are in agreement with the data. The computed anti–nucleon spectra in the vacuum differ about 20—30MeV with and without the tensor–coupling effects.

HTML

Reference (1)

Spectra of Anti-Nucleons in the Vacuum of Finite Nuclei

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article